put the following code in the init() event of the grid:

=DODEFAULT()

THISFORM.grdDisplay.ReadOnly = .T.

*-- Alternate white and green records
THISFORM.grdDisplay.ReadOnly.SetAll("DynamicBackColor", ;
"IIF(MOD(recno(),2) = 1, RGB(255,255,255), RGB(255,255,236))", "Column")